Re: [PATCH] speed up SATA
From: Jeff Garzik
Date: Sun Mar 28 2004 - 12:56:52 EST
Jamie Lokier wrote:
This is what I mean: turn off write cacheing, and performance on PATA
drops because of the serialisation and lost inter-command time.
With TCQ-on-write, you can turn off write cacheing and in theory
performance doesn't have to drop, is that right?
hmmm, that's a good point. I honestly don't know. Something to be
tested, I suppose...
My premature guess would be that you would need a queue depth larger
than 2 or 4 before performance starts to not-suck.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/